Shuttle.



A. F. MCCOLLUM.

SHUTTLE.

APPLICATION HLED JUNE 2a. 191s.

l v Patented Aug. 28, 1917.I

l"llblli,llED i ESTATE@ l PATENT AIiRED F. MGGOLLUVI, 0F BLOOMSBRG,PENNSYLVANIA, ASSIGNOR OF THREE-FIFTHS T0 JAMES MAGEE, 2D, OFBLOOIVISBURG, PENNSYLVANIA.

SHUTTLE'.

Specification of Letters atent.

Patented aug. es, reir.-

` i Appnc'ationiea June 28,1916. semaine'. 10eme;

To all whom t may concern.'

Be it known that I, ALFRED F.V MCCOLLUM,

.a citizen' oil the United States, residing in Bloomsburg, Columbiacounty, Pennsylvania, have invented a Shuttle, ot ivhich the following'is a specification.

@ne object of this invention is to provide a novel form of shuttle,particularly ofthe type used in webbing' or ribbon looms, Whoseconstruction shall besuch as to eectually prevent the heavy pull on orbreakage of theyarn in case it slips off of either end of the bobbingthe invention contemplating a construction especially designed tofacilitate the insertion and removal of said bobbin from they shuttle.

Another objectot the invention is to'provide a shuttle with a novel formof bearings whichI shall be so proportioned that the bobbin is free toslide longitudinally in opposite directions and by reason of thisa'ction, alternately disengage its supporting spindles` as the yarnunWinds, thereby per-v mitting the free delivery of said yarn in case itshoulds become so loosened as to' allow one or more turns tov come oliover the end of the bobbin.

' I further desiretoprovide a shuttle of the type noted with a novel;form of bobbin-supporting means inclnding ai spindle and anv openhearing for each end of theV saine, together With a n'ovel constructionyand arrangenient of parts for permitting` of the rapid threading ofsaidl shuttle.

These obj ects-and other a'dvantageolis ends I secnre as hereinafter setforth, reference being hadj tothe accompanying drawings, in which:` y ii Figure ll is aside elevation of a shuttle constructed according to myinvention g l ,Fig. 2 is af vertical sect-ion on the line 2&2, Fig. l; l

Fig'. 3 is a planv of apart of the topoii the shuttle frame showing itas equipped with my quick threading device; and

Figi-1l is a perspective View of thebush# ing or' eyelet for guiding theyarn as it passes from the bobbin.

In t-he above drawings l represents the Wooden frame or body ot-ashuttle which inplan isoztl a substantially semi-elliptic outline,vhav-ing an elongated opening in lwhich t-he bobbin w' is rotatablyinoui'ited.-

The base member of the frame is formed With the customary elongatedguldeway? Q on one side and with toothed rack 3 at the opposite side,thereV being also a porcelain or glass eyelet or opening all 'forming ayarn guide and set in the central portion of the top member of saidfr-ame;

`As shown in Fig. 3 this eyelet is made in the form of a flattened ringl1. having an inclined cut oi' passageway in one side, and the adjacentpart of the shuttle frame likewise has through it an inclined cut orslot 12l registering with and i-orniing a continuation of the cut 13 insaid ey'elet.` Mounted in a. shallow slot orl depression' 'to one sideof the eyelet 4 and extending longitudinally oi the frame across theupper end ot' the slot 12 is a spring keeper in the forni of a resilientWire M vlixedly held tothe frame l at one end and free at the oppositeend. y

The bearings for the support oi" thebobbin ,t consist of two`cylindrical cuplikestructures" and* 6 niadc ot' sheet metal and more orless yieldingly supported by a strip metal piece 7 extending bet-Weenthem but rigidly held to the base member oil the sh`u`ttle by screws a'sshoivn. Each of these bean ing shells is cut away atone side to permitof the easy introduction of the bobbin and they are'such a` distanceapart that when one endl of the bobbin is in engagement `with the end*of the beariiig 6 for example, the opposite endl ofsaid bobbin eXtends ashort distance `Within' thes'econd shell The! bearings have relativelyshort tapered spindles or pintles S and 8l projecting t'oivard eachother from their ends and their lengths are suchA that when the bobbinlies" fully Within one of the bearings, against the end* thereof, itsopposite en'd is spaced some distance away from' the pointed' end ot thespindle; in

the other bearing, although itis rotatably carried by the latter bearingstructure.`

Any suitable braking o1' retarding devicel may be used on the bobbin andthis in the present instance alsoassists in holding said bobbin in* itsbearings.v In* the case illustrated `said devi'ceconsists of a rod 9extending across the opening in the shuttle'adjacent onev side of thebaise andcarrying a plate l0 yieldingly engaging the yarn at about themiddle part of tllerbobbin, under the action of a `spring ll coiledf onitli'e rod Q'and acting' upon saidlplate. y

Under conditions of use as the yarn is drawn outV of the shuttle andunW'inds from the lei't hand side of the bobbin for example, the pull ofsaid yarn causes said bobbin to'move to the. right so that the righthand spindle or pivot 8 enters its central longitudinal passage androtatably supports lits right hand end, holding it from engaging thebearing shell 6. If while the yarn 1s being delivered, one or more ofits coils adjacent the left hand end should become loosened and slip offover the same, no increase in the tension of said yarn would result norwould ,thereA be any tangling, since there is a space between the end ofthe bobbin and the spindle 8n through which such coils could freelypass. lhen the yarn so far unwinds from the bobbin as to passl themiddle thereof and begin to feed from the right hand end, its tensioncauses the bobbin to move longitudinally to the left so that lits lefthand en'd is rotatably carried on the spindle 8a while its right handend is rotatably supported `by the bearing 6, some distance away fromthe spindle 8, with the same advantages as noted in connection with thespindle 8a. y

Obviously the bobbin may be removed with the utmost ease and in aminimum time, since for this purpose it is merely necessary to raise`the plate l0 and after lifting the bobbin out of one of its bearings 50r6, to slide it off of the short spindle 8' 0r 8a. A `filled bobbin maylikewise be placed in the shuttle with the greatest convenience sinceafter the plate 10 has been drawn out, one end of said bobbin may beplaced in one of the bearings 5 or 6 with the spindle thereof projectinginto its central passage, after which the opposite end may be' droppedinto the other bearing and the plate l0 released. The yarn is thenpressed into the slot l2 and, while the bobbin is held, drawn againsttheretaining keeperlt, which is thereupon raised to permitsaid yarn topass under it into the eyelet L Gbviously said keeper eflectually servesto prevent escape of the yarn from the eyelet, although it may beomitted without departing from my invention, in which case theoverhanging ends of the 'eyelet are depended on to perform the sameJfunction. As a result of the use of my construction the speed ofoperation and capacity of the loom are increased,V especially sincethere is no time lost by thel possible dropping of the long spindlewhich has heretofore been used to rotatably support the bobbin inshuttles of the class illustrated. Moreover by means of the peculiarlyformed eyelet 4 and its associated parts, an additional time is saved inthreading the shuttle.

Another important advantage of my invention arises from the decreasednumber of breakages of the yarn and the lessened time during which theloom is out of service, for by permitting the loosened coils of the yarnto freely pull away from the bobbin instead no tendency to break thesameA c Y of wrapping around a'spindle, there is prac-l tically constanttension on said yarn with I claim l. The combination in a shuttle of aframe', and two bearings carried thereby in positions to rotatablysupport a bobbin while permitting longitudinal movement thereof in theframe; with means for rotatably supporting the bobbin in the shuttleindependently of said bearings.. y il 2. The combination in a shuttlegof a frame;

and two cup-shaped bobbin-receiving b`earings each open at onesideofsa'id frameto permit of the removal of the bobbin and spaced withtheir ends a greater distance apart than the length of the bobbin; withmeans for rotatably supporting either end of the bobbin in the shuttleindependently of said bearings. v .n w-

3. The combination in a shuttle of a frame; two bearings mountedthereinin positionsto rotatably support a Ybobbin and spaced to permitmovement of said bobbin longitudinally of the frame; with short spindlesfin the bearings respectively in positions to rotatably support thebobbin. q

4. The combination in a shuttle of a frame two bearings mounted thereinin positions to rotatably support abobbin and spaced to permit movementof said bobbin longitudinally of the frame; with short spindles in thebearings respectively in positions to ro'- tatably support the bobbin,the length of the bobbin plus the length of either spindle being lessthan the distance between the ends of the bearings. 5. The combinationin ashuttle of a frame; two open sided bearings therein; .and spindlesfor the bearings; the distance between the ends of the bearings beinggreater thanl the length of a bobbin and the distance be` tween the endof either bearing and the adjacent edge of theother bearing being lessthan the length ofthe bobbin. i l

\ 6. The combination in a shuttle'of a frame having an opening andprovided with ayarn guide leading therefrom; cup shaped bearings mountedat opposite ends of the opening with their ends at a greater distanceapart than the length of the bobbin used in the shuttle; and relativelyshort' spindles mounted in the bearings respectively in positions toenter and support the ends of said bobbin as this is alternately movedin opposite directions in the bearings by the pull of the-yarn passingthrough the yarn guide.

7 The combination in a shuttle of a frame; two cup-shaped bobbinbearings therein each open on one side of a the frame; with "aspring-pressed plate mounted between the bearings to retainthe bobbintherein; `and means for supporting'either end of the bobbin.independently of said bearing. f

8. The combination in a shuttle of a frame;

t\vo relatively short spindles mounted there in, and spaced such adistance apart that either of them is free of the bobbin when the latteris engaged as far as possible with the other spindle; and means forrotatably supporting that end of the bobbin which is disengaged from itsspindle.

9.` The combination in a shuttle of a frame; two relatively shortspindles mounted therein, and spaced such a distance apart that eitherof them is free of the bobbin When it is engaged as far as possible withthe other spindle; meansfor rotatably supporting that end of the bobbinwhich is disengaged from its spindle; and means for yieldingly holdingthe bobbin in place.

l0. The combination in a shuttle of a frame; two bobbin bearings mountedtherein with their ends at a materially greater distance apart than thelength of a bobbin in order to permit the latter to move longitudinallytherein; `with means for rotatably supporting either end of the bobbinout of engagement with its adjacent bearing when it is moved into thesame a predetermined distance.

l1. The combination in a shuttle of tivo bearings; and relatively shorttapering spindles in said bearings respectively, the distance from theend of either one of the bearings to the end -oi the spindle in theother bearing being greater than the length of the bobbin, the diameterof the bearings being greater than that of the bobbin ends so thateither end of said bobbin is supported independently of its bearing Whenit rotatably engages the spindle therein.

12. The combination in a shuttle of a frame having an opening anda yarnguide leading therefrom; a support oi" spring material mounted in theopening; two open sided bearings carried by said support with their endsat a greater distance apart than the length of a bobbin; and pointedspindles for the bearings, onefspindle being clear of a bobbin when thelatter is on the other spindle With its end engaging the end of theadjacent bearing.

13. The combination in a shuttle of a frame having an opening and a yarnguide leading therefrom; two open sided bearings carried by said frame;and pointed spindles for th-e bearings, the distance from the end of onebearing to the point of the spindle in the other bearing being greaterthan the length of a bobbin for use in said shuttle.

14:. The combination in a `shuttle of a frame; and means for supportinga bobbin in the frame With that end from which yarn is being delivered,supported to permit the free drawing over it of any coils of the yarnwhich come off of said bobbin; and spindles mount-ed to alternatelyengage and support the nondelivery end of the bobbin as said bobbin isalternately moved in opposite directions longitudinally of the frameunder the action of the yarn.

, ALFRED F. MGCOLLUM.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents,

Washington, D. C.

